shitter vs three-quarter bathroom

shitter

noun
  • A toilet or lavatory; an outhouse. 

  • One who defecates. 

  • The anus. 

  • Someone lacking skill, especially in a video game. 

  • An objectionable person or thing. 

three-quarter bathroom

noun
  • A bathroom with a toilet, sink, and shower stall but without a bathtub. 

How often have the words shitter and three-quarter bathroom occurred in a corpus of books? (source: Google Ngram Viewer )